Automatic bead making machine



March 13, 1951 E. c. HEALY AUTOMATIC BEAD MAKING MACHINE 2 Sheets-Sheet1 Filed March 23, 1948 Fig./.

Eugene 6. Hea/y INVENTOR.

E C. HEALY March 13, 1951 Patented Mar. 13, 1951 UNITED STATES PATENTOFFICE AUTOMATIC BEAD MAKING MACHINE Eugene C. Healy, Pawtucket, R. I.

Application March 23, 1948, Serial No. 16,542

4 Claims.

This invention relates to an automatic beading machine and the primaryobject of the invention is to provide a device that will quickly andefliciently provide a finished beaded strip within a short space oftime.

Another object of the invention is to provide a simple structure capableof carrying out the process in a single step and one which is asefficient in operation as any of the more complicated devices.

Features of the invention concern a pair of oppositely arranged dies,means to rotate the said dies and compress them together while beingrotated, and means to quickly separate the device when the formed beadsare ready to be removed.

A further object of the invention will become readily apparent from thedescription which follows, taken together with the drawings, in which:

Figure 1 is a side elevation of the device of the invention;

Figure 2 is a top plan view of the device shown in Figure 1;

Figure 3 is a transverse sectional view taken along the line 3-3 ofFigure 1;

Figure 4 is a horizontal sectional view of the invention, takensubstantially along the line 44 of Figure 1;

Figure 5 is an enlarged fragmentary view of the beads in the process offormation;

Figure 6 is an enlarged sectional view of the beads being formed;

Figure 7 is an enlarged sectional view of the beads formed with the diespressed together;

Figure 8 is a perspective view of a sample bead, and

Figure 9 is a modification of the die pressing means.

The device of the invention is indicated generally at H] and includes aflat support or table 12 supported on legs [4. Die block I6 is supportedon table [2 by means of stanchions l8 containing lateral flanges 20which are bolted to table l2 at 22. stanchions I8 integrally mount apair of cam rings 24 which include cam members 26 spaced around theinner periphery thereof. Four members 26 are shown, though it is obviousthat the total number may vary. (Figure 3.) Each cam ring 24 is made oftwo semi-annular rings 28 and 30, each terminating in opposed'flanges32. Retained between flanges 32 is a coil spring 34 urging the cam ringsapart. Hydraulic means, indicated at 36 and connecting to a suitablesource of supply (not shown), is mounted on flanges 32 of each cam ringsegment 28, to close the cam rings 26, in a manner to be more fullyexplained. Since the operation of the hydraulic means is conventional,it is believed that no further description of the operation thereof isnecessary. Cam ring 24 is hinged at 31 to pivotally retain the segments28 and 30 thereof together.

Die I6 consists of two semi-cylindrical members 38 and 40 in oppositelydisposed relation. A plurality of bead forming recesses 42 are formedalong the diametrical surfaces thereof. On each extremity of dies 38 and40 are longitudinal counterbores 44 which engage with locking pins 46extending transversely from end plates 48 and 54. Each end plateincludes a laterally extending shaft 50, while plate 48 contains anintegral pulley 52 mounted at the outer end of shaft 50. Both shafts areaxially apertured at 56 along the lengths thereof and are supported bystanchions 60 bolted at 62 to table l2. A work stock 58 is inserted intothe die through aperture 56.

Referring to Figure 3, die members 38 and 40 are transverselycounterbored at 64, 66 in apertured alignment. A spring 68 is seated inbore 66 of die member 40 to urge outwardly a peg Ill located in andextending beyond bore 64.

A motor 12 is connected by means of pulley 14 on drive shaft 16 topulley 52 by means of pulley belt 78.

From the above, the operation of the devicebecomes readily apparent. Diemembers 38 and 40 are normally urged apart by means of springs 68 andpegs 18. A bead-making stock is then inserted through aperture 56 andmotor 12 is started to rotate the die 16 by engagement of pins 46 inbores 44. Cams 26 on cam ring 24 give a hammering action on die block l6and pressure is simultaneously applied to hydraulic means 36 to compressspring 34 until the closed position shown in Figure '7 is attained. Whenthe beads are completely formed, pressure on cam ring 24 is shut 01f andthe rotation of die I6 is stopped.

In Figure 9 is illustrated a modification of the pressure means shown inFigure 3. Flanges 62 and 64 are similar to flange 32 shown in Figure 3.Flange 64 is apertured at 66 to receive therethrough a threaded bolt 68pivoted at 10 in flange 62, retaining spring 12 between flanges 62, 64in diverging relation. A wing nut 14 is rotated on bolt 68 to overcomethe pressure of spring 12.

It is to be understood that the invention is not to be limited to theidentical construction disclosed in the drawings, since it is obviousthat various changes and modifications might be made therein withoutdeparting from the spirit and scope of the invention as defined in theclaims.

Having described the claimed as new is:

1. In an automatic beading machine, a pair of oppositely disposed dies,means on the dies to form beads, springs secured in one die, peg meansin the other die engaging said springs, a cam ring encircling said dies,said cam ring being split and'fhaying a hinge connection on one side andopposing terminal flanges on the side remote from said hinge connection,and compression means engaging said flanges for urging them together.

2. In an automatic beading machine, a pair of oppositely disposed dies,means on the dies to form beads, springs mounted in bores in oneof saiddies, peg means in the other of said dies engaging and compressing saidsprings, a cam ring encircling said dies and comprising opposinvention,what is -i-ng {segments releasable, hinged together for movingthe-segments -of maid-z cam ring toward each other, thereby.relcasablypressing said oppositely disposed dies together.

arrmachine :accordingto claim 1 wherein tion-of the cams on said camring acting directly on the dies as well as the actuation of thehydraulic clamp.

EUGENE C. HEALY.

REFERENCES CITED Thefollowing references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 16,87,464 Sullivan ,Nov. 26, 19017 319 Brooks"-.. -May 1 1921 1,161,521 Eastman June .3, 1930 2,202,125Temple, Jr. May 28, 1940

